[17].Surah Al-Isra' [The Journey By Night]: Ayat 9-10

also known as Surah Bani Israel [The Children of Israel]

Ayat 9. Verily, this Qur'an guides to that which is most just and right and gives glad tidings to the believers, who work deeds of righteousness, that they shall have a great reward (Paradise).

Ayat 10. And that those who believe not in the Hereafter (i.e. they disbelieve that they will be recompensed for what they did in this world, good or bad, etc.), for them We have prepared a painful torment (Hell).  

Hazrat Othman bin Affan (May Allah be pleased with him) reported: The Messenger of Allah [SAWW](PBUH)  said, "The best amongst you is the one who learns the Qur'an and teaches it.''

[Al-Bukhari Book 06, Chapter 61, Hadith # 545]. 

Lesson : as mentioned above in Surah Al-Isra Ayat 009. "This Qur'an guides to that which is most just and right and gives glad tidings to the believers,This Hadith tells us excellence of people who learn Quran and then spend there time teaching to others.